Burner



FIG. 1 is a perspective view of the burner;

FIG. 2 is a side view of the burner;

FIG. 3 is a top view of the burner;

FIG. 4 is a perspective view of only the burner insert;

FIG. 5 is a side view of only the burner insert;

FIG. 6 is a perspective view of only the burner base;

FIG. 7 is a side view of only the burner base; and,

FIG. 8 is a top view of only the burner base.

The broken lines showing portions of the burner and environment form no part of the claimed design. 

CLAIM The ornamental design for a burner, as shown and described. 